import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@WebServlet("/status")
public class StatusServlet extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        resp.setContentType("text/html; charset=utf-8");

        //让用户传入一个请求
        //请求在query string中带一个参数，就表示响应的状态码
        //根据用户的输入，返回不同的状态码的响应
        String statusString = req.getParameter("status");
        if(statusString==null||statusString.equals("")){
            resp.getWriter().write("当前请求的参数status缺失");
            return;
        }
        resp.setStatus(Integer.parseInt(statusString));
        resp.getWriter().write("status: "+statusString);
    }
}
